Google is undertaking the most radical change to its search results ever, introducing a “Universal Search” system that will blend listings from its news, video, images, local and book search engines among those it gathers from crawling web pages.

The new system officially rolls out today for anyone using Google.com and searching in English. Not everyone will see it at first, but over the course of the next several days, Universal Search should be more, well, universal. A new navigational interface has also been unveiled for Google.

More detail here.

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